The quality of buying fashionable sunglasses is the key

u003cbru003eIntroduction: It is understood that in daily life, too many light sources will produce harmful light. Polarized sunglasses have the function of polarizing light and effectively block harmful light, so they can block harmful light. Does not affect the transmission of visible light. Generally, sunglasses only use the effect of light reduction, because ordinary lenses cannot change the direction of light, but can only reduce the intensity of light transmittance, ultraviolet light, etc., and cannot completely block some harmful light, so its function is only to reduce the damage to the eyes. The midsummer season is right in front of you. It is of course very important to buy a good pair of sunglasses. When you go out to play, your eyes need more care. Faced with the dazzling array of sunglasses, will you be dazzled? A few days ago, the reporter interviewed professionals in the glasses industry. It is understood that in daily life, too many light sources will produce harmful light. Polarized sunglasses have the function of polarizing light and effectively block harmful light, so they can block harmful light without affecting visible light. Through. Generally, sunglasses only use the effect of light reduction, because ordinary lenses cannot change the direction of light, but can only reduce the intensity of light transmittance, ultraviolet light, etc., and cannot completely block some harmful light, so its function is only to reduce the damage to the eyes. Polarized lenses have polarizing properties, so they can block the dazzling glare caused by various factors such as scattering, refraction, and reflection. At the same time, it can also block the ultraviolet rays harmful to human eyes, so that when people are active under strong light for a long time, the eyes are not easy to get tired, to achieve the real protective function, and can see things more clearly and three-dimensionally, so it is very suitable for frequent outdoor work Active friends. Many people in daily life always think that wearing a pair of colored glasses to block the sun can protect their eyes. In fact, the shade of the lens can only affect the performance of visible light absorption. The high-end optometrist at the optical shop pointed out that when buying sunglasses, pay attention to the following health misunderstandings. When buying sunglasses, you can’t just look at the beauty and give up everything. Ideal sunglasses must block at least 96% of the ultraviolet rays to be useful. The color of the lens can not block ultraviolet rays, the color only affects the performance of visible light absorption. What's more, if you wear a colored lens, your pupils will be dilated, poor quality sunglasses can not see clearly and cannot withstand ultraviolet rays. If human eyes are often exposed to ultraviolet radiation, the conjunctiva will be congested and inflamed in the lighter ones, and the crystals will become turbid and easily Cataracts can damage the retina and fundus to varying degrees. The choice of shades of lens color should depend on the place of activity required. For different light sources and occasions, the color of the lens will affect the shading effect. When buying sunglasses, try to see if you feel dizzy or headache. Hold the sunglasses with your hands, face the mirror legs to the fluorescent lamp, and let the reflective strip of the mirror roll smoothly. If you find that the fluorescent lamp shadow reflected by the mirror is wavy or twisted, it proves that the lens is not flat. Such a mirror will damage your eyesight. Now the weather is getting hotter and the sunglasses are selling very well. Customers come to buy them every day. Women's sunglasses sell well with Tyrannosaurus and Pasha, because these two brands of sunglasses are very fashionable and popular with fashionable ladies. Men’s sunglasses sell well in Tyrannosaurus, Pilk Shield and Police. These three brands have always been well-known. Many men came to the store and asked about these three brands directly. In addition, children’s sunglasses are also selling well this year. Children’s eyes are more susceptible to UV damage than adults’ eyes. Some parents have acquired this knowledge in the media and have come to buy for their children. Conclusion: You can't just buy sunglasses for beauty, but you can't just leave things alone. Ideal sunglasses have to block at least 96% of the ultraviolet rays to be useful. The color of the lens can not block ultraviolet rays, the color only affects the performance of visible light absorption. When buying sunglasses, try to see if you feel dizzy or headache. Hold the sunglasses with your hands, face the mirror legs to the fluorescent lamp, and let the reflective strip of the mirror roll smoothly. If you find that the fluorescent lamp shadow reflected by the mirror is wavy or twisted, it proves that the lens is not flat. Such a mirror will damage your eyesight. Article Title: The quality of buying fashionable sunglasses is the key Article finishing:

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